COLUMBUS, Ohio (AP) — A judge has sentenced a 23-year-old central Ohio man to 20 years in prison for strangling his mother during an argument over money last year.

Tyler Dunkle was sentenced Tuesday in Columbus after pleading guilty to involuntary manslaughter and other charges in the death of 44-year-old Terri Menendez. The sentenced was approved by both sides as part of a plea agreement.

The Columbus Dispatch ( ) reports that Dunkle’s attorney told the judge the former high school honor student was suffering from alcoholism and mental illness. Police say he strangled his mother and hid her body in a closet at their apartment in suburban Hilliard on March 29, 2013.